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— 
84 UNITED STATES AND MEXICAN BOUNDARY. 
BACCHARIS BIGELOVII (sp. nov.): herbacea, glabra ; ramulis striato-angulatis ; foliis subviscosis 
oblongis lanceolatisve basi in petiolum angustatis grosse argute serratis, majoribus subincisis 
vel duplicato-serratis uninerviis obsolete venosis ; capitulis masculis et foemineis laxe paniculato- 
corymbosis parvis (lineas 2 longis) breviter pedicellatis 15—18-floris ; involucri squamis 3—4- 
seriatis oblongo-lanceolatis sub-acutis margine scarioso eroso superne ciliatis; pappi setis fl. 
masc. subclavellatis.—B. ptarmicefolia ? Gray, Pl. Wright, 2, p. 83. Mountain ravine, Santa 
Cruz, Sonora; Wright (1200, male). Puerto de Paysano; Bigelow (both sexes). Oak woods 
between Babocomori and Santa Cruz; Thurber. The additional specimens, of both sexes, show 
this to be clearly different from the preceding, and probably an unpublished species. The 
leaves in Dr. Bigelow’s specimens, from which the character is principally taken, are much 
broader than in Wright’s or Thurber’s, more irregularly toothed or incised, and all obtuse, 
while those of Wright’s are lanceolate or linear-lanceolate, and often acute. 
BACCHARIS RAMULOSA, Gray, Pl. Thurb. p. 301. Aplopappus (Aplodiscus) ramulosa, DC. 
Prodr. 5, p. 850. Linosyris (Aplodiscus) ramulosa, Gray, Pl. Wright, 1, p. 97, Ф 2, р. 80. 
Organ mountains, Cobre, etc., New Mexico; Wright, Bigelow. Guadalupe cafion; Parry. 
Mr. Wright and Dr. Gregg cullected only the male plant, apparently the same with that pub- 
lished by De Candolle from Keerl’s Mexican collection. The fertile plant now being known, 
the plant is found to be a genuine Baccharis. Berlandier likewise collected specimens in the 
mountains of San Luis Potosi (No. 1352.) 
TESSARIA (PHALACROCLINE) BOREALIS, Gray, Pl. Fendl. p. 15, Ё Pl. Wright, l.c. River 
bottoms from the Rio Grande, New Mexico, to the Colorado of the West; gathered by all the 
collectors. Shrubby, 4-8 feet high, called Arrow-wood ; forming dense thickets. 
PLUCHEA САМРНОВАТА, DC.; Torr. & Gray, Fl. 2, p. 261. San Luis Rey, California; Parry. 
Heads rather larger and the pedicels more downy ; otherwise just as in the eastern plant. 
了 LUCHEA FETIDA, DC.; Torr. & Gray, 1. с. Low places on the San Pedro, Texas ; Bigelow. 
FILAGINopsis MULTICAULIS, Torr. & Gray, Fl. 2, p. 263, & in Pope R. В. Survey, t. З. Eastern 
Texas to El Paso and Chihuahua. Evidently F. Drummondii, Torr. & Gray, is not a distinct 
species. It is distributed among Berlandier’s reliquie, under the Nos. 568, 1011, 1067, 1958, 
2109, 2241, 2497. 
DIAPERIA PROLIFERA, Nutt.; Torr. & Gray, l. c. Stony hills of the Pecos and Blanco; Texas; 
Wright. 
Evax (HESPEREVAX) CAULESCENS, Gray, in Bot. Whipp. Rep. p. 101, t. 11. Psilocarphus caules- 
cens, Benth. Pl. Hartw. p. 319. Sacramento valley, California; Mr. Fitch. 
PSILOCAKPHUS TENELLUS, Nutt.; Torr. Ё Gray, 1. c., ё in Whipp. Вер. 1. с. With the last; Mr. 
Fitch. 
STYLOCLINE MICROPOIDES, Gray, Pl. Wright, 2, p. 84. Fronteras, New Mexico; Wright, 
Parry. 
EcLrPTA ERECTA, Linn.; var. BRACHYPODA, Torr. Ё Gray. San Antonio, San Pedro, and the 
lower Rio Grande, Texas; Schott, etc. 
BORRICHIA FRUTESCENS, DO. Texas, on the Pecos; Wright. Galveston and the lower Rio 
Grande; Schott. 
SILPHIUM SCABERRIMUM, ЕЙ; Torr. & Gray, Fl. 2, p. 279. On the Sabinal, Texas ; Wright. 
